I find it hard to believe but is there really no one that repairs these? I have 3 on hand and they all have slightly different issues. Only the original one in my low mileage ZHP is perfectly clear sound so I'm hesitant to buy another used one. The M3 has all new HK speakers and I'm really not looking to go with an aftermarket headunit. Carphonics only repairs the early E46 Becker units and it looks like a brand new CD53 from BMW may be NLA. Curious if anyone knows someone that I have missed?
